MAVLink 1

JP Drone

voxl-mavlink seems to support only MAVLink 2.
https://gitlab.com/voxl-public/voxl-sdk/third-party/voxl-mavlink/-/tree/master/files

The third-party application I use uses MAVLink1 in part, which results in an error (actually no response).
Do you plan to support MAVLink v1.0 in the future?

JP Drone

To reproduce:
set MAV_PROTO_VER to 1 (always use version 1)
VOXL cannot get any information from PX4.

Eric Katzfey

@JP-Drone Until now we didn't know that there was a use case for v1.0. What is the third party application?

JP Drone

@Eric-Katzfey
It's UgCS.
The default is v1.0.
It's possible to set v2 or auto.
But if I set auto, it fails to connect.
Because it tries to negotiate with v1 at first and VOXL doesn't handle it.

Eric Katzfey

@JP-Drone Does it work if you set it to v2?

JP Drone

@Eric-Katzfey Yes, it works.
I am not sure if changing the settings on the GCS side will affect the connection to other copter.
But now it seems fine.
Thanks.